
<template>
    <div class="backTop" @click="backtop"></div>
</template>
<script>
export default {
    name:"BackTop",
    setup(props,{emit}){
        return{
            backtop:()=>{
                emit('bTop');
            }
        }
    }
}
</script>

<style scoped lang="scss">
.backTop{
    width: 40px;
    height: 40px;
    position: fixed;
    bottom: 80px;
    right: 30px;
    z-index: 20;
    box-shadow: 5px 5px 5px #888;
    border-radius: 50%;
    background: #fcfcfc url('~assets/images/up.png') no-repeat center center;
}
</style>